Impact of Preoperative Fasting on Intraoperative Glycemic Homeostasis and Enhanced Recovery in Children

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

300 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-07-15

Study Completion Date

2023-04-15

Brief Summary

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In 2018, the main societies of anesthesia (European Society Anaesthesiology, European Society Pediatric Anesthesia, and Association des Anesthésistes Réanimateurs Pédiatriques d'Expression Française) changed the current recommendations for preoperative fasting time in children, reducing the time to last intake of clear liquids from two to one hour before anesthetic induction. Prolonged fasting may have a deleterious impact on blood glucose homeostasis. The consequences of intraoperative hypoglycemia in children can be serious in the short term, but also in the long term. The objective of multicenter prospective, observational cohort study is to investigate- in children younger than 24 months of age undergoing scheduled conventional inpatient surgery- a correlation between the duration of preoperative fasting, glycemic intraoperative homeostasis and the criteria of enhanced recovery after surgery, which are the hospital length of stay (main outcome), postoperative pain and postoperative nausea-vomiting (secondary outcomes). By identifying non-adherence to fasting rules as one of the causes of prolonged hospitalization, this study will highlight the need to develop effective strategies to promote adherence to fasting rules in pediatric surgery and minimize the potential deleterious impact on intraoperative glycemic control.

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Detailed Description

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Preoperative fasting instructions (6 hours for solids and formula, 4 hours for breast milk, and 1 hour for clear liquids) will be explained to parents orally during the preoperative anesthesia consultation and a written document, reminding them of these instructions, will be given to them afterwards.

Upon arrival in the operating room, the anesthesiologist will record on a standardized collection sheet the time of fasting as well as the premedication received (time of paracetamol and/or ibuprofen, β2-mimetic aerosols, preoperative antibiotic therapy).

After anesthetic induction, once airway management and securing of the peripheral venous line have been completed and before surgical setup, a capillary blood sample will be taken from the earlobe or fingertip to measure blood glucose and ketone levels using a blood glucose and ketone meter (FREESTYLE OPTIUM NEO H, ketone and blood sugar meter, calibration performed prior to the study by the pharmacology department). A ketonemia will be considered abnormally high if the ketone level is higher than 0.6 mmol/L (0.11g/L). Hypoglycemia will be defined as a capillary blood glucose level less than \<3.5 mmol/L (0.63 g/L)9. In case of hypoglycemia or high ketonemia, a second capillary sample should be taken, taking care to change the sampling area (ear or finger) and then an average of the two results should be taken. Capillary blood glucose and ketone measurements are part of routine care in pediatric anesthesia. Therefore, there will be no additional cost.

Intraoperative monitoring for all children will include a 3-lead ECG, pneumocardiograph, non-invasive blood pressure measurement, pulse oximetry (SpO2), esophageal or rectal temperature measurement, and capnography. A forced-air heating blanket will be used to warm the patient during the procedure. Mean arterial pressure (MAP) will be documented after induction of anesthesia, and hypotension will be defined as MAP \< 45 mmHg7. Intraoperatively, data will be collected from the patient's blood pressure.

Intraoperatively, the following data will be recorded on the standardized collection sheet: anesthetic agents used (hypnotics and morphinics), intraoperative analgesics, anti-nausea agents (dexamethasone, ondansetron), infusion fluids used (nature of the fluid, rate of infusion), catecholamine (ephedrine), drugs that may interfere with blood sugar regulation.

In the recovery room, postoperative pain will be evaluated using the EVENDOL scale and by the consumption of analgesics (total dose of paracetamol, ibuprofen, nalbuphine). The treatment of postoperative nausea and vomiting, left to the discretion of the anaesthetist, will also be recorded (total dose of ondansetron, droperidol, others).

After return to the department, the duration of hospitalization will be recorded. It will be defined as the number of days between arrival in the operating room and departure from the hospital. A clinically significant difference in length of stay will be considered a difference of at least 4 hours of hospital stay.

Conditions

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Anesthesia Morbidity Child, Only Fasting Hypoglycemia

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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glycemia

capillary glycemia

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* All children less than 24 months of age
* scheduled for conventional inpatient surgery will be included

Exclusion Criteria

* Children receiving intravenous fluids during the fasting period
* children managed in ambulatory surgery
* children with an ASA score strictly greater than 3
* children managed in the emergency operating room
* children with an acute metabolic disorder
* an endocrine pathology or a pathology requiring the chronic use of drugs modifying glycemia (insulin, oral antidiabetics, glucagon, gabapentin, antidepressants and neuroleptics, conversion enzyme inhibitors (CEI)
* beta blockers, statins, anti-transplant treatments, corticoids, antimalarial drugs, the following antibiotics fluoroquinolones, doxycycline, sulfamethoxazole, trimethoprim)

Minimum Eligible Age

0 Months

Maximum Eligible Age

24 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

No